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1#!/bin/sh
2
3test_description='basic symbolic-ref tests'
4. ./test-lib.sh
5
6# If the tests munging HEAD fail, they can break detection of
7# the git repo, meaning that further tests will operate on
8# the surrounding git repo instead of the trash directory.
9reset_to_sane() {
10 echo ref: refs/heads/foo >.git/HEAD
11}
12
13test_expect_success 'symbolic-ref writes HEAD' '
14 git symbolic-ref HEAD refs/heads/foo &&
15 echo ref: refs/heads/foo >expect &&
16 test_cmp expect .git/HEAD
17'
18
19test_expect_success 'symbolic-ref reads HEAD' '
20 echo refs/heads/foo >expect &&
21 git symbolic-ref HEAD >actual &&
22 test_cmp expect actual
23'
24
25test_expect_success 'symbolic-ref refuses non-ref for HEAD' '
26 test_must_fail git symbolic-ref HEAD foo
27'
28reset_to_sane
29
afe5d3d5 30test_expect_success 'symbolic-ref refuses bare sha1' '
a48fcd83 31 echo content >file && git add file && git commit -m one &&
8a7b73c1 32 test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
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33'
34reset_to_sane
35
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36test_expect_success 'HEAD cannot be removed' '
37 test_must_fail git symbolic-ref -d HEAD
38'
39
40reset_to_sane
41
42test_expect_success 'symbolic-ref can be deleted' '
43 git symbolic-ref NOTHEAD refs/heads/foo &&
44 git symbolic-ref -d NOTHEAD &&
9ab55daa 45 test_path_is_file .git/refs/heads/foo &&
12cfa792 46 test_path_is_missing .git/NOTHEAD
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47'
48reset_to_sane
49
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50test_expect_success 'symbolic-ref can delete dangling symref' '
51 git symbolic-ref NOTHEAD refs/heads/missing &&
52 git symbolic-ref -d NOTHEAD &&
9ab55daa 53 test_path_is_missing .git/refs/heads/missing &&
12cfa792 54 test_path_is_missing .git/NOTHEAD
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55'
56reset_to_sane
57
58test_expect_success 'symbolic-ref fails to delete missing FOO' '
59 echo "fatal: Cannot delete FOO, not a symbolic ref" >expect &&
60 test_must_fail git symbolic-ref -d FOO >actual 2>&1 &&
61 test_cmp expect actual
62'
63reset_to_sane
64
65test_expect_success 'symbolic-ref fails to delete real ref' '
66 echo "fatal: Cannot delete refs/heads/foo, not a symbolic ref" >expect &&
67 test_must_fail git symbolic-ref -d refs/heads/foo >actual 2>&1 &&
cbc5cf7c 68 git rev-parse --verify refs/heads/foo &&
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69 test_cmp expect actual
70'
71reset_to_sane
72
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73test_expect_success 'create large ref name' '
74 # make 256+ character ref; some systems may not handle that,
75 # so be gentle
76 long=0123456789abcdef &&
77 long=$long/$long/$long/$long &&
78 long=$long/$long/$long/$long &&
79 long_ref=refs/heads/$long &&
80 tree=$(git write-tree) &&
81 commit=$(echo foo | git commit-tree $tree) &&
82 if git update-ref $long_ref $commit; then
83 test_set_prereq LONG_REF
84 else
85 echo >&2 "long refs not supported"
86 fi
87'
88
89test_expect_success LONG_REF 'symbolic-ref can point to large ref name' '
90 git symbolic-ref HEAD $long_ref &&
91 echo $long_ref >expect &&
92 git symbolic-ref HEAD >actual &&
93 test_cmp expect actual
94'
95
96test_expect_success LONG_REF 'we can parse long symbolic ref' '
97 echo $commit >expect &&
98 git rev-parse --verify HEAD >actual &&
99 test_cmp expect actual
100'
101
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102test_expect_success 'symbolic-ref reports failure in exit code' '
103 test_when_finished "rm -f .git/HEAD.lock" &&
104 >.git/HEAD.lock &&
105 test_must_fail git symbolic-ref HEAD refs/heads/whatever
106'
107
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108test_expect_success 'symbolic-ref writes reflog entry' '
109 git checkout -b log1 &&
110 test_commit one &&
111 git checkout -b log2 &&
112 test_commit two &&
113 git checkout --orphan orphan &&
114 git symbolic-ref -m create HEAD refs/heads/log1 &&
115 git symbolic-ref -m update HEAD refs/heads/log2 &&
116 cat >expect <<-\EOF &&
117 update
118 create
119 EOF
71abeb75 120 git log --format=%gs -g -2 >actual &&
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121 test_cmp expect actual
122'
123
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124test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
125 git checkout -b df &&
126 test_commit df &&
127 test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
128 git pack-refs --all --prune &&
129 test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
130'
131
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132test_expect_success 'symbolic-ref can overwrite pointer to invalid name' '
133 test_when_finished reset_to_sane &&
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134 head=$(git rev-parse HEAD) &&
135 git symbolic-ref HEAD refs/heads/outer &&
a1c1d817 136 test_when_finished "git update-ref -d refs/heads/outer/inner" &&
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137 git update-ref refs/heads/outer/inner $head &&
138 git symbolic-ref HEAD refs/heads/unrelated
139'
140
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141test_expect_success 'symbolic-ref can resolve d/f name (EISDIR)' '
142 test_when_finished reset_to_sane &&
143 head=$(git rev-parse HEAD) &&
144 git symbolic-ref HEAD refs/heads/outer/inner &&
145 test_when_finished "git update-ref -d refs/heads/outer" &&
146 git update-ref refs/heads/outer $head &&
147 echo refs/heads/outer/inner >expect &&
148 git symbolic-ref HEAD >actual &&
149 test_cmp expect actual
150'
151
152test_expect_success 'symbolic-ref can resolve d/f name (ENOTDIR)' '
153 test_when_finished reset_to_sane &&
154 head=$(git rev-parse HEAD) &&
155 git symbolic-ref HEAD refs/heads/outer &&
156 test_when_finished "git update-ref -d refs/heads/outer/inner" &&
157 git update-ref refs/heads/outer/inner $head &&
158 echo refs/heads/outer >expect &&
159 git symbolic-ref HEAD >actual &&
160 test_cmp expect actual
161'
162
afe5d3d5 163test_done